#include <stdio.h>

int main()
{
    const int number=10;
    int x;
    int count[number];
    int i;
    
    for(i=0;i<number;i++){
    	count[i]=0;
    }
    scanf("%d",&x);
    while(x!=-1){
    	if (x>=0&&x<=9){
    		count[x]++;
    	}
    	scanf("%d",&x);
    }
    for(i=0;i<number;i++){
    	printf("%d:%d\n",i,count[i]);
    }
    return 0;
}
